Lamp construction



C. L. DE MARTIN, W. MATTEOLI AND S. F. ARBUCKLE. LAMP CONSTRUCTION.APPLICATION FILED JUNE 2. 1919 Patented Apr. 26', 1921.

A T TORNE Y.\5.

UNITED STATES PATENT OFFICE.

CHARLES L. DE MARTIN AND WILLIAM M. MATTEoLI, OF CONNERSVILLE, ANDSAMUEL AEBUoKLE, or INDIANAPOLIS, INDIANA, ASSIGNOES, BY MESNEASSIGNMENTS, To UNITED STATES AUTOMOTIVE CORPQRATION, or coN NEESVILLE,INDIANA, A CORPORATION OF DELAWARE.

LAMP CONSTRUCTION.

Specification of Letters Patent.

Patented Apr. 26, 1921.

Application filed June 2, 1919. Serial No. 301,360.

To all whom it may concern:

Be it known that we, CHARLES L. DE MARTIN, VILLIAM M. MATTEoLI, and SAM-UEL F. ARnUoKLE, citizens of the United States, and residents ofConnersville and Indianapolis, counties of Fayette and Marion, and Stateof Indiana, have invented a certain new and useful Lamp Construction;and we do hereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the accompanying drawings,in which like numerals refer to like parts.

This invention relates to the construction of a lamp or headlight forautomobiles, motor boats and the like, and more particularly to thattype of headlight in which a tilting reflector is used.

The main object of this invention is to construct a tilting reflectorheadlight in the most convenient and practical manner for assembly andoperation, whereby the various working parts are formed and heldtogether so as to be readily-demountable from the headlight casing. Thisis accomplished by means of a metal bow to which is secured thereflector, lamp and controlling means, whereby all operable parts arecontained within and Supported by said bow, which may be readily mountedin or removed from the casing without disturbing said operable parts.

In the drawings, lwhich are made a part of this application, Figure 1 isa central vertical cross section through the lamp showing the reflectorin tilted position. Fig. 2 is the same as Fig. 1 showing the reflectorin normal position. Fig. 3 is a front elevation of the lower portion ofthe reflector showing the method of hinging it to the casing. Fig.1

4 is an enlarged section taken on the line 4-4 of Fig. 3 showing thehinge construction. Fig. 5 is a front elevation of the upper portion ofthe lamp with the reflector removed therefrom.

In the drawings there is shown a lamp casing 10, parabolic in form,having a door rim 11 mounted thereon, in which is secured a lens 12' bymeans of a plurality of spring clips 13 mounted on corresponding lensspacing members '14, there being approximately three lens retaining clisv and spac-v ing members spaced around t e periphery of the door rim.The casing 10 is provided with an inwardly extending flange 15 about 1tsperiphery, against which a retaining rim 16 is adapted to abut, beingheld in position by the'lens 12 pressing against the packing ring 17 soas to force the rim 16 against said flange. Mounted and supported bysaid retainlng rim there is a metallic strip 18, formed bow-shape so asto'extend around and he adjacent the inner wall of the casing and toembrace the reflector 19. The reflector 19 is hinged to the retainingrim at two points 20, on either side of the'bottom thereof, as shown inFi 3, by means of a hinge member 21, whic consists of a sprlng memberlooped so as to engage the mwardly turned open bead of the reflector bymeans of a downwardly curved projectron, and clamp itself on to theretaining run, as shown in the enlarged section of Fig. 4, wherebywithin the stationary retaining rim 16. The reflector may also be hingedat any other points on its periphery, such as the sides phereof, withoutdeparting from this inven- Mounted on the inner side of the supportinghow 18 there is a fluid actuating means 22, shown herein as a bellows,however a piston or any other suitable means may be used in thisconstruction. Said fluid actuating means is secured at one end to saidbow and at the other end to the lower portion of the reflector so thatit will draw said reflector rearwardly toits normal position, as shownin Fig. 2, when compressed, and force it forwardly t0 the tiltedposition, as shown in Fig. 1 when expanded.

Mounted in the reflector there is a lamp 23 secured in the socket 24extending rearwardly from said reflector, and having an upwardlyextending arm 25 which is adapted to straddle an adjusting bolt 26 whichextends through the supporting bow horizontally and is provided withadjustable nuts 27, which further act as a stop whereby the limiting ofthe forward and rearward movement of the reflector may be furtheradjusted. Secured to the upper portion of the bow there is a leaf spring28, in position to yieldin 1y engage the projection 29 Secured to t ereflector, for exerting a slight forward and downward pressure on saidre said reflector may be tilted flector to aid the fluid actuating meansin its tilting movement, and maintaining the reflector in its upperposition relative to the hinges and retaining rim and also prevent anyplay or rattle of the reflector therein.

The tube 30 leading to the fluid actuating means, and the conduit 31leading to the lamp socket extend into the contact plug other.

The invention claimed is:

l. A lamp construction including a casing, a door mounted on saidcasing, an annular rim removably secured on said casing, a tiltingreflector pivotally mounted on said rim, a frame'member spaced from saidreflector and secured to said rim, said frame member extending betweensaid reflector and casing, and means supported between said frame memberand reflector for actuating said reflector, whereby said reflector,actuating means and supporting rim and frame may be removable from saidcasing as a unit.

2. A lamp construction including a casing, a door mounted on saidcasing, a retaining rim mounted in said casing, a tiltable reflectormounted on said rim, means for tilting said reflector, a single meansmounted on said retaining rim for supporting and retaining said tiltingmeans in constant relation with said reflector, means mounted in saidsupporting means for adjustin and limiting the tilting position of saidre ector, and resilient means for yieldingly retaining said reflector inits tilted position.

3. A lamp construction including a lamp casing, a door removably mountedon said casing, a retaining rim supported between said door and casing,a reflector mounted in said rim and having a rearwardly turned bead,means for tilting said reflector, and a spring clip having a forward anddownward projection adapted to engage in the rearward turned bead ofsaid reflector and frictionally secure it on said rim for hinging saidreflector thereon, whereby it will be ,tiltable in said casing.

In witness whereof, we have hereunto aflixed our signatures.

CHARLES L. DE MARTIN.

WILLIAM M. MATT'EOLL SAMUEL F. ARBUCKLE.

